A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6135-01-320-4815
NSN 6620-01-253-0374
NSN 5935-01-145-3384
NSN 6110-01-479-7464
NSN 6645-01-500-0827
NSN 5975-00-928-8429
NSN 5910-01-570-3929
NSN 5920-01-215-4741
NSN 6130-01-530-7777
NSN 5915-00-467-1585
NSN 5990-01-476-0722
NSN 6105-01-437-6431